A Universal Timing Strategy for Moving Table Peripheral MRA

Introduction Single injection moving table peripheral contrast enhanced MR angiography (pMRA) is increasingly utilized for the evaluation of peripheral atherosclerotic occlusive disease (PAOD). While the majority of exams are successful, a sizable fraction are not; almost always due to lower station venous contamination. This is largely due to the tremendous inter-patient variability in arterial and venous flow dynamics. While numerous strategies exist in attempt to minimize venous enhancement, no single effective and coherent method applicable to all MR platforms has to date emerged. By utilizing our extensive database of contrastenhancement timing parameters, we attempted to devise and test a universally applicable and inherently simple-to-perform pMRA timing strategy.